Pin and clevis device.



PATENTED SEPT. 1, 1908.

A. .0. BUGKIUS.

PIN AND GLEVIS DEVICE.

APPLICATION FILED DEO.6,1907.

WITNESSES KPWEM, m.

UNITED STATES PATENT OFFICE.

IIN AND GLEVIS DEVICE.

Specification of Letters Patent.

Patented Sept. '1, 1908.

Application filed December 6, 1907. Serial No. 405,308.

my invention, showing the pin before the closing lips at the end of the groove are bent down; Fig. 2 is a similar view showing the completed device with the pin turned ninety degrees from its position, as shown in Fig. 1; Figs. 3 and 4 are end views respectively, of Figs. 1 and 2; and Fig. 5 is a side View showing a modification, with the in in dotted lines, and showing the clevis be ore the securing lips for the pin have been bent into lace; Fig. 6 is a side view ofthe form of (evice shown in Fig. 5 in its completed form; 4 and- Fig. 7 is an end view of the same partly in section. I

My invention has relation to a pin and clevis which has been more particularly designed for use in connection with car couplers, but which can be used for a variety of other urposes. In t e ordinary pin and clevis devices in use, the pins are continually drop ing out and becoming lost, which result in t 1e couplers becoming inoperative and the clevises being lost from the chains. 1

My invention is designed to provide a device of this kind, in which the pin is so connected with the clevis as to at all times remain therewith.-

Referring first to the form of the device shown in Fi s.1, 2, 3 and 4, the numeral 2 designates t e clevis, and 3 the pin having the usual head 4 at one end. The eyes or ape'rtures 5 in the arms of the clevis through which the pin loosely extends, are each provided with a tooth or lug 6, which is designed to fit loosely in a longitudinal groove 7 formed at one side of the pin, oneof these teeth or lugs having the extension 6*. When the pin is inserted in the clevis, this groove is left open at the free end of the pin, but after 'the 1n hasbeen inserted it is closed by bending own the lips 7, shown unbent in Fig. 1., to the closed osition shown in Fig. 2. The

inner edges 0 these lips will then form a stop,

for engagement with the lug extension 6,

which will effectually prevent the pin from falling out of the clevis. In order to ermit the pin to rotate notwithstanding t e engagement of the lug extensionfi with the groove 7, the pin is provided adjacent to its head with a circumferential groove 8, into which tho'groove 7 opens, and which is of suflicient depth to clear the lug 6 and permit the pin to freely rotate.

In the form of device shown in Figs. 5, 6 and 7, thepin is formed with a longitudinal groove 9 in both sides, which grooves are initially closed at the free end of the pin as is shown at 10. The arm of the clevis adjacent to the headed end of the pin is provided with the lips or lugs 11. After the pin has been inserted, these lips are bent inwardly from the open position shown in Fig. 5 to the positionshown in Figs. 6 and 7, so as to engage with the grooves 9. This engagement will efiectually prevent the pin from coming out of the clevis, since the closed ends of the grooves 10 will engage with these lugs and retain the pin. In this form the pin cannot be rotated. The free ends of the pins are provided with the usual holes 12 to receive cotter pins. vision of the means described for insuring that the pins will at all times remain with the clevises, adds but little if anything to the cost of the devices, and obviates the loss of the pins andthe difficulties arising there from.

I do not wish to limit myself to the precise means which I have herein shown and described for retaining the pins in the clevises, as various modifications thereof may be made without departing from the spirit and scope of my invention as defined in the ap ended claims.

claim 1. In a pin'and clevis device, a pin arranged to slide endwise in the clevis, and having a bendable portion whose position is changed after the pin is insertedto prevent the withdrawal of the pin from the clevis; substantially as described.

2 The combination of a pin and a clevis, the pin being arranged-to slide endwise in the clevis, and one of the members of the pin and clevis having a bendable portion whose position is changed 'after the pin is inserted to prevent the withdrawal of. the pin from the clevis; substantiallygas described.

3. The combination of a pin and a clevis, the pin being arranged to slide endwise in the clevis, and one of the members of the pin and clevis having a bendable portion whose (position is changed after the in is inserte and the other member having a cooperating stop member adapted to engage the said bendable portion in its changed position to prevent the withdrawal of the pin from the clevis; substantially as described.

4. In a pin and clevis device, a clevis having eyes, and a pin arranged to slide in said eyes, the pin and clevis having integral cooperating stop portions whose relative osition can be changed after the pin has been inserted to revent the withdrawal of the pin; substantially as described.

5. In a pin and clevis device, a clevis having eyes, and a pin arranged to slide in said eyes, said pin having a longitudinal groove, and the clevis having a projection arranged to engage said groove, said pin havin a bendable portion which can be mover to close one end portion of the groove after the in has been inserted; substantially as descri ed.-

6. In a pin and clevis device, a pin having a longitudinal groove, and also having lips at its free end arran ed to be bent to close the end portion of the groove, and a clevis having a tooth or lug adapted to engage said groove, said pinalso having a circumferential groove adjacent to its head and into which the longitudinal groove opens; substantially as described.

In testimony whereof, I have hereunto set my hand.

ALBERT o. BUOKIUS.

Witnesses CLAYTON MARK, S. E. SCHOOLEY. 

